ASTM WK15489

    Work Item: ASTM WK15489 - Revision of C156 - 05 Standard Test Method for Water Retention by Liquid Membrane-Forming Curing Compounds for Concrete

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    Active Standard: C156 - 11

    Developed by Subcommittee: C09.22 | Committee C09 | Contact Staff Manager



    1. Rationale

    Mr. Toy Pooles analysis of round robin test data obtained from CalTrans and MnDOT for ASTM C 156 provides improved precision of the method. The research report on which the statement is based is included in the ballot. Although C 156 does not use 24 hour retention data, some DOTs allow or require 24 hour results. Since the data was available, both 24 and 72 hour precisions are reported here. Action: Replace present section 16 with the following:


    Keywords

    concrete curing materials; liquid membrane-forming curing compounds; moisture retention by concrete curing materials;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    5-13-2007

    Technical Contact:
    Ben Edwards

    Status:
    Draft Under Development